Mass HIway Directory

This directory lists organizations enrolled in the Mass HIway, ranging from practices to hospitals, covering primary, ambulatory, acute, long-term, post-acute, behavioral health, home health and other facilities. New participants enroll daily, and participants produce millions of HIway transactions. Use the filters to search for organizations who participate. Read these guidelines before sending messages to other participants on the HIway. Participants are categorized as:

Enrolled: Executed Mass HIway Agreement. Working with HIway and technology vendors on implementation